{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["engineering feature", "biomedical", "material", "manufacturing standard", "machanical property", "machine or equipment"], "input": "Wire and arc-based additive manufacturing ( AM ) is an additive manufacturing technique applying arc welding technology , where the metal melted by the arc discharge is accumulated and deposited ."}
{"engineering feature": [], "biomedical": [], "material": ["metal"], "manufacturing standard": [], "machanical property": [], "machine or equipment": []}